package com.colorfruit.admin.control.config;

import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.annotation.EnableAsync;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;

import java.util.concurrent.Executor;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

/**
 * 线程池配置
 */
@Configuration
@EnableAsync
@Slf4j
public class ExecutorConfiguration {

    @Bean
    public ThreadPoolTaskExecutor asyncServiceExecutor(){

        log.info("start asyncServiceExecutor");

        ThreadPoolTaskExecutor executor=new ThreadPoolTaskExecutor();
        //配置核心线程数
        executor.setCorePoolSize(20);
        //配置最大线程数
        executor.setMaxPoolSize(200);
        //线程池维护线程所允许的空闲时间
        executor.setKeepAliveSeconds(5);
        //配置队列大小
        executor.setQueueCapacity(500);
        // rejection-policy：当pool已经达到max size的时候，如何处理新任务
        // CALLER_RUNS：不在新线程中执行任务，而是有调用者所在的线程来执行
        executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());

        //执行初始化
        executor.initialize();
        return executor;
    }

    @Bean
    public ScheduledThreadPoolExecutor asyncScheduledThreadPoolExecutor(){

        log.info("start asyncScheduledThreadPoolExecutor");

        ScheduledThreadPoolExecutor executor=new ScheduledThreadPoolExecutor(10);
        executor.setMaximumPoolSize(200);
        executor.setKeepAliveTime(5, TimeUnit.SECONDS);
        return executor;
    }
}

